Describes the importance of eating properly. Presents two middle school level activities: the first activity has students record what they eat for nine days; the second activity includes listing the foods according to the food pyramid and discussing their decisions. Recommends three Web sites. (YDS)

Presents an activity enabling students of grades four to nine to construct a "Buzzing Bee" model using simple materials. Provides students with the opportunity to explore the concepts of sound and the Doppler effect. (MKR)

Presents activities in which students play the role of cadets performing missions for the fictitious SETI (Search for Extraterrestrial Intelligence) Academy. Guides students toward an understanding of evolutionary forces and how they are affected by the physical environment. (JRH)

Provided are suggestions for student investigations of life in swift stream communities, in slow stream areas and near a spring. (PEB)

The fourteen-year life story of a sealed terrarium is presented. (BB)

Origins, philosophy, goals, textbook formulation, guidelines, other publications, and measurement of success for the Biological Sciences Curriculum Study program are discussed. (DF)

Describes three census activities concerning birds and butterflies that involve students in the actual collection of biological data. A Project Feederwatch data form is also included. (ZWH)

Describes how to construct a model of a DNA molecule with inexpensive materials. (BR)